
DuraForm EX
DuraForm EX is based on nylon 11 and is available in natural or black. The key benefits are enhanced toughness and suitability for low to medium volume manufacturing runs. Various types of clip and living hinges can be produced.
Technical Data
Click here for supplier's data sheet.
General Properties 
Value 
Test 
Specific Density 
1.01 g/cm3 
ASTM D792 
Moisture Absorption – 24 hours 
0.48% 
ASTM D570 
Moisture Saturation 
1.15% 
ASTM D570 
Mechanical Properties 
Value 
Test 
Tensile Strength, Yield 
37 MPa (5366 psi) 
ASTM D638 
Tensile Strength, Ultimate 
48 MPa (6961 psi) 
ASTM D638 
Tensile Modulus 
1517MPa (220 ksi) 
ASTM D638 
Elongation at Yield 
5% 
ASTM D638 
Elongation at Break 
47% 
ASTM D638 
Flexural Strength, Yield 
42 MPa (6091 psi) 
ASTM D790 
Flexural Strength, Ultimate 
46 MPa (6672 psi) 
ASTM D790 
Flexural Modulus 
1310 MPa (190 ksi) 
ASTM D790 
Hardness, Shore D 
74 
ASTM D2240 
Hardness, Rockwell L 
69 
ASTM D785 
Hardness, Rockwell M 
34 
ASTM D785 
Impact Strength (notched IZOD, 23°C) 
74 J/m (1.4 ftlb/in) 
ASTM D256 
Impact Strength (unnotched IZOD, 23°C) 
1486 J/m (27.8 ftlb/in) 
ASTM D256 
Garner Impact 
11.8 J (8.7 ftlb) 
ASTM D5420 
Thermal Properties 
Value 
Test 
Heat Deflection Temp 
188°C @ 0.45 MPa
48°C @ 1.82 MPa 
ASTM648 
Coefficient of Thermal Expansion (51150°C) 
120.0 µm/m°C (66.7 µin/in°F) @ 050°C
342 µm/m°C (190 µin/in°F) @ 85145°C 
ASTM E831 
Specific Heat Capacity 
1.75 J/g°C (0.418 BTU/lb°F) 
ASTM E1269 
Thermal Conductivity 
0.51 W/mK (3.5 BTUin/hrft2°F) 
ASTM E1225 
Flammability 
HB 
UL 94 
Electrical Properties 
Value 
Test 
Volume Resistivity 
1.3 x1013 ohmcm 
ASTM D257 
Surface Resistivity 
4.9 x1013 ohm 
ASTM D257 
Dissipation Factor, 1 KHz 
0.050 
ASTM D150 
Dielectric Constant, 1 KHz 
4.5 
ASTM D150 
Dielectric Strength 
18.5 kV/mm (470 kV/in) 
ASTM D149 
Data was generated by building parts under typical default parameters.
DuraForm EX was processed on a base level Sinterstation HiQ SLS system at 13 watts laser power,
5 metres/sec scan speed, and a powder layer thickness of 0.1mm. 
